config/Makefile.am: whitespace cleanup

No code changes.

config/Makefile.am

@@ -5,25 +5,25 @@
 # Copyright (c) 2004-2005 The University of Tennessee and The University
 #                         of Tennessee Research Foundation.  All rights
 #                         reserved.
-# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
 #                         University of Stuttgart.  All rights reserved.
 # Copyright (c) 2004-2005 The Regents of the University of California.
 #                         All rights reserved.
 # Copyright (c) 2006-2015 Cisco Systems, Inc.  All rights reserved.
-# Copyright (c) 2010      Oracle and/or its affiliates.  All rights 
+# Copyright (c) 2010      Oracle and/or its affiliates.  All rights
 #                         reserved.
 # Copyright (c) 2014      Intel, Inc. All rights reserved.
 # $COPYRIGHT$
-# 
+#
 # Additional copyrights may follow
-# 
+#
 # $HEADER$
 #
 
 EXTRA_DIST = \
         distscript.csh \
-	opal_get_version.m4sh \
-	ltmain_pgi_tp.diff \
+        opal_get_version.m4sh \
+        ltmain_pgi_tp.diff \
         opal_mca_priority_sort.pl
 
 maintainer-clean-local: